Home / 56,918.60-78,545.63-31,424.44

Finding the Fourth Proportional to 56,918.60, 78,545.63 and 31,424.44

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Solution

The fourth proportional to 56,918.60, 78,545.63 and 31,424.44 is: 43,364.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,918.60 : 78,545.63 = 31,424.44 : x
  2. Step 2: Convert to fraction form
    56,918.60/78,545.63 = 31,424.44/x
  3. Step 3: Cross multiply
    56,918.60x = 78,545.63 × 31,424.44
  4. Step 4: Simplify right side
    56,918.60x = 2,468,252,437.20
  5. Step 5: Solve for x
    x = 2,468,252,437.20/56,918.60
  6. Step 6: Final answer
    x = 43,364.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.